I am very much in agreement with user fv098, and have taken the liberty of using many of their answers, some modified with my own thoughts. Here goes:
1. What are the most important features for the torrent site to make you satisfied?
Easy and clear search results and simple navigation around the website. Involvement in the community & clear user feedback on torrents. Reliability (your always being there), seriousness of the site admins, i.e. your making sure everything works, answering queries via the contact form and not ignoring them and in general applying yourselves toward the site running flawlessly (as long as the bastards in the MPAA et al let you be).
2. Which services do you also use in conjunction with torrents?
Only µTorrent (I am a Swede after all;)
3. What do you like the best about torrents?
The availability of content and the speedy downloads. When downloading, I always think with gratitude of Bram Cohen who I believe invented the bittorent protocol. I have been dowloading music files since 1998 (first one: Madonna - Ray of Light/Twilo mix) and it was an iffy proposition back the to download files; you had to get the whole thing in one go (via ftp) or else start anew. Then GetRight came along, then Cohen and bittorent, and I am living testimony to what a great invention that was. It ended the uncertainty in a way people new to peer-to-peer networks can not appreciate.
4. What do you dislike about torrents?
How easy it is to upload fake content and/or content with malware/spyware. Not a big problem according to me. See answer 3. about how it was in 'the bad old days' - this is a minor irritation and not common. A dead giveaway when it comes to MPAA dummy files is their incredibly high number of seeders/leechers.
Questions about streaming:
6. Which device(s) do you use to watch video content?
The KMPlayer. Occasionally VLC.
7. Imagine there would be the best online service for video content. What would it be like?
8. Which cloud storage services do you use?
9. What do cloud storage services you use lack?
If I had used them - the moral integrity to not kowtow to the anti-piracy lobby. As it is, any mediafiles I have attepted to store/share (IDrive, Dropbox) have been categorically removed vithout them even considering the possibility of my having bought a CD, ripped it and wanting to share it with friends - fair usage.